DAX help

[Thimma]

Hi,

Below is the data and have expected output as well. I am trying to write DAX expression to get the 

Total Trainer Duration  ,

Trainer Name,

No of Student

but couldn't success. any help would be much appreciated.

Data
ID	username	Category	Duration
101	John	Trainer	60
101	Tom	Student	20
101	Chris	Student	30
101	Wilson	Student	40
Expected Output
ID	username	Category	Total Trainer Duration	Trainer Name	No of Student
101	John	Trainer	60	John	3
101	Tom	Student	60	John	3
101	Chris	Student	60	John	3
101	Wilson	Student	60	John	3

[ryan_mayu · Accepted solution]

@Thimma 

pls try this 

Measure = CALCULATE( sum('Table'[Duration]),FILTER(all('Table'),'Table'[Category]="Trainer"))

Measure 2 = maxx(FILTER(all('Table'),'Table'[Category]="Trainer"),'Table'[username])

Measure 3 = CALCULATE( COUNTROWS('Table'),FILTER(all('Table'),'Table'[Category]="Student"))

[dshao]

Is this data in a query in Power BI Desktop already? If so, you do not need a DAX expression, you can just select the fields you want in a table visual.